Interesting find! It is not shown in either Aqua's PA Merchant Tokens book or on tokencatalog.com, and I would encourage you to post your pics on the latter site for the record. I could post it with your permission and the measurement of the piece. The 1915, 18, & 20 Pittston City Directories show James Wall as an "engineer" and Terrence Wall as "laborer" at that address. A few years earlier, there were other men named Wall living there. I would guess that the brothers had a side business in their home selling confectionery, cigars, etc. and this token was used in that enterprise.
John in the Great 208